There are artists out there who eschew traditional approaches to drawing but are nonetheless obsessed with detail as a way express what are often frightening visions of the world in general and humanity in particular. Their roots lie in the dreamlike visions of Heironymous Bosch.
Most who try it fail to develop a unique vision or compelling style and get mired in cliché psychedelia. This kind of work is often driven by direct experiences with drug addiction, insanity or both, which can explain the rarity of finding such artists who also have the discipline to excel.
Artist Robert Steven Connett on flickr.
Quoted text via Grotesque.